Valved embolic protection filter
First Claim
Patent Images
1. An embolic protection filter, comprising:
- an elongated member having a proximal end and a distal end;
a filter connected to the elongate member proximate the distal end; and
a valve connected to the filter.
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Accused Products
Abstract
Embolic protection filters having means for retaining embolic debris captured therein are disclosed. An embolic protection filter in accordance with the present invention may include a filter frame disposable about a guidewire, a filter membrane for filtering embolic debris, and a valve configured to prevent the escape of filtered embolic debris. The valve may comprise a leaflet valve having a plurality of leaflets configured to engage each other about a coaptive region.
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Citations
33 Claims
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1. An embolic protection filter, comprising:
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an elongated member having a proximal end and a distal end;
a filter connected to the elongate member proximate the distal end; and
a valve connected to the filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An embolic protection filter, comprising:
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a filter frame including an annular-shaped member disposable about an elongated member;
a filter membrane coupled to said annular-shaped member, said filter membrane comprising a microporous membrane or mesh screen for filtering embolic debris within a blood vessel; and
a plurality of coaptive leaflets pivotally mounted to the annular-shaped member, said plurality of coaptive leaflets configured to engage each other about a coaptive region forming an aperture configured to receive the elongated member. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An embolic protection filter, comprising:
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a filter frame including an annular-shaped member disposable about an elongated member;
a filter membrane coupled to said annular-shaped member, said filter membrane comprising a microporous membrane or mesh screen for filtering embolic debris within a blood vessel; and
a plurality of coaptive leaflets pivotally mounted to the annular-shaped member, said plurality of coaptive leaflets configured to engage each other about a coaptive region forming an aperture configured to receive the elongated member;
wherein said plurality of leaflets are configured to deflect away from the coaptive region in response to the flow of blood in the downstream direction, and resiliently return to the coaptive region in response to the flow of blood in the upstream direction.
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32. An embolic protection filter, comprising:
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a filter frame disposable about an elongated member;
a filter membrane coupled to the filter frame for filtering embolic debris within a blood vessel; and
means for retaining the embolic debris within the filter membrane. - View Dependent Claims (33)
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Specification